31244644304 has 20 divisors (see below), whose sum is σ = 60539591364. Its totient is φ = 15621523968.

The previous prime is 31244644303. The next prime is 31244644367. The reversal of 31244644304 is 40344644213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26490817600 + 4753826704 = 162760^2 + 68948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31244644303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391274 + ... + 464310.

Almost surely, 2^31244644304 is an apocalyptic number.

It is an amenable number.

31244644304 is a deficient number, since it is larger than the sum of its proper divisors (29294947060).

31244644304 is a wasteful number, since it uses less digits than its factorization.

31244644304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99782 (or 99776 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Subtracting 31244644304 from its reverse (40344644213), we obtain a palindrome (9099999909).

The spelling of 31244644304 in words is "thirty-one billion, two hundred forty-four million, six hundred forty-four thousand, three hundred four".